Permo-Carboniferous(redirected from Permo-Carboniferous Glaciation)
The Permian and Carboniferous periods considered as one unit.
The Permian and Pennsylvanian periods considered as a single unit.
The rock unit, or the period of geologic time, transitional between the Upper Pennsylvanian and the Lower Permian periods.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.